Data Sheet
March 19, 2009
EUE200/120 Series DC-DC Converter Power Module:
42 - 55Vdc Input; 12Vdc Output; 200W
42 - 58Vdc Input; 12Vdc Output; 120W
RoHS Compliant
Features
Compliant to RoHS EU Directive 2002/95/EC (-Z
versions)
Compliant to ROHS EU Directive 2002/95/EC with
lead solder exemption (non-Z versions)
High power density: 238 W/in
3
High efficiency – 95.3% at 11.6V full load
Exceptional Thermal Performance:
0
170W at 70 C at 1 m/s (200LFM)
Delivers up to 200W Output power
Low output ripple and noise
Industry standard Eight brick footprint
57.9mm x 22.9mm x 10.9mm
(2.28in x 0.9in x 0.43in)
Single unregulated output
Narrow input voltage range
Constant switching frequency
Positive logic, Remote On/Off
Input over voltage protection
Output overcurrent protection
Over-temperature protection
Applications
Distributed power architectures
Intermediate Bus voltage application
Optical and Access Network Equipment
Servers and storage applications
Wireless and Enterprise equipment including
Power over Ethernet (PoE)
Options
Negative logic, Remote On/Off
Baseplate (-H)
Auto restart after fault shutdown
Operating temperature range (-40°C to 85°C)
UL*
60950-1Recognized,
CSA
C22.2 No. 60950-1-
‡
03 Certified, and
VDE
0805:2001-12 (EN60950-1)
Licensed
ISO** 9001 certified manufacturing facilities
2250 Vdc Isolation tested in compliance with IEEE
¤
802.3 PoE standards
†
Description
The EUE-series are a new generation of DC/DC power modules designed to support intermediate bus applications
where multiple low voltages are generated using discrete/modular point of load (POL) converters. The EUE series
provide up to 200 watt output power in an industry standard Eighth brick, which makes it an ideal choice for compact
space, high current and intermediate bus voltage applications. The converter incorporates synchronous rectification
technology and innovative packaging techniques to achieve ultra high efficiency reaching 95.3% at 11.6V full load.
The ultra high efficiency of this converter leads to lower power dissipation such that for most applications a heat sink
is not required. The EUE series power modules are isolated DC-DC converters that provide a single unregulated
output voltage with a 4:1 step-down ratio between input/output.
*
UL
is a registered trademark of Underwriters Laboratories, Inc.
†
‡
CSA
is a registered trademark of Canadian Standards Association.
VDE
is a trademark of Verband Deutscher Elektrotechniker e.V.
** ISO is a registered trademark of the International Organization of Standards
¤ IEEE and 802 are registered trademarks of the Institute of Electrical and Electronics Engineers, Incorporated.
Document No: DS04-006 ver. 1.61
PDF name: eue200_series_ds.pdf
Data Sheet
March 19, 2009
EUE Series DC-DC Power Modules:
42-55/42-58Vdc Input; 12Vdc Output; 200/120W
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are
absolute stress ratings only, functional operation of the device is not implied at these or any other conditions in
excess of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for
extended periods can adversely affect the device reliability.
Parameter
Input Voltage
Continuous
Non-Operating Condition
Operating Ambient Temperature
(see Thermal Considerations section)
Storage Temperature
I/O Isolation (100% factory Hi-Pot tested)
All
All
T
stg
-40
100
2250
°C
Vdc
EUE200
EUE120
All
All
T
A
V
IN
V
IN
-0.3
-0.3
-0.3
-40
55
58
75
85
Vdc
Vdc
Vdc
°C
Device
Symbol
Min
Max
Unit
⎯
⎯
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions.
Parameter
Operating Input Voltage
Maximum Input Current
(EUE200:V
IN
=0 to 55V , P
o
= 200W
, max
)
(EUE120:V
IN
=0 to 58V , P
o
= 120W
, max
)
Inrush Transient
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 12μH source impedance; V
IN
=0
to 55V, P
o
= 200W
, max
;See Figure 17)
Input Ripple Rejection (120Hz)
EUE200
EUE120
All
All
All
I
IN,max
I
IN,max
It
2
Device
EUE200
EUE120
Symbol
V
IN
V
IN
Min
42
42
Typ
48
48
Max
55
58
Unit
Vdc
Vdc
Adc
Adc
As
mAp-p
dB
2
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
5
12.3
5.6
3.5
1
⎯
⎯
CAUTION: This power module is not internally fused. An input line fuse must always be used.
This power module can be used in a wide variety of applications, ranging from simple standalone operation to being
part of complex power architecture. To preserve maximum flexibility, internal fusing is not included; however, to
achieve maximum safety and system protection, always use an input line fuse. The safety agencies require a fast-
acting fuse with a maximum rating of 10A (see Safety Considerations section). Based on the information provided in
this data sheet on inrush energy and maximum dc input current, the same type of fuse with a lower rating can be
used. Refer to the fuse manufacturer’s data sheet for further information.
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Data Sheet
March 19, 2009
EUE Series DC-DC Power Modules:
42-55/42-58Vdc Input; 12Vdc Output; 200/120W
Electrical Specifications
(continued)
Parameter
Output Voltage Set-point
(EUE200 :V
IN
=V
IN,nom
,P
O
=200W, T
a
=25°C)
(EUE120 :V
IN
=V
IN,nom
,P
O
=120W, T
a
=25°C)
Output Regulation
Over Line change
Over Load change
Temperature (T
A
=-40 C to +85 C)
Output Ripple and Noise on nominal output
(V
IN
=V
IN, nom
and P
O
= 200W,
max
)
RMS (5Hz to 20MHz bandwidth)
Peak-to-Peak (5Hz to 20MHz bandwidth)
External Capacitance
Output Power
Output Current Limit Inception (Hiccup Mode)
(V
IN
= 48V, T
a
=25°C)
Efficiency
V
IN
=V
IN, nom
and P
O
= 200W,
max
T
A
=25°C
V
IN
=V
IN, nom
and P
O
= 120W,
max
T
A
=25°C
Switching Frequency
Dynamic Load Response
(dI
O
/dt=1A/μs; V
IN
=V
IN
,
nom
; T
A
=25°C ;
Tested with a 10
μF
tantalum and a 1.0
μF
ceramic capacitor across the load)
Load change from I
O
= 50% to 75% of I
O, max
Peak Deviation
Settling Time (V
O
<10% peak deviation)
Load change from I
O
= 75% to 50% of I
O, max
Peak Deviation
Settling Time (V
O
<10% peak deviation)
EUE200
V
pk
t
s
⎯
⎯
200
200
⎯
⎯
mV
μs
EUE200
V
pk
t
s
⎯
⎯
200
200
⎯
⎯
mV
μs
EUE200
EUE120
η
η
f
sw
__
__
⎯
95.3
94.6
230
__
__
⎯
%
%
KHz
All
All
All
EUE200
EUE120
EUE200
EUE120
C
O,max
P
o
P
o
I
O, lim
⎯
⎯
⎯
0
0
__
__
35
50
⎯
⎯
⎯
22
13
__
__
3000
200
120
__
__
mV
rms
mV
pk-pk
μF
W
W
% I
o, max
0
0
Device
Symbol
Min
Typ
Max
Unit
All
V
O, set
⎯
12.0
⎯
V
dc
All
All
All
9.8
⎯
⎯
⎯
0.5
150
13.8
0.7
__
V
dc
V
dc
mV
Isolation Specifications
Parameter
Isolation Capacitance
Isolation Resistance
Symbol
C
ISO
R
ISO
Min
⎯
10
Typ
1000
⎯
Max
⎯
⎯
Unit
pF
MΩ
General Specifications
Parameter
Calculated MTBF per Telcordia SR-332 Issue
1:Method 1,Case 3 (V
IN
= 48V,I
O
= 13.8A,
T
A
=40°C,airflow=1m/s(200 LFM))
Weight
Device
EUE200
⎯
Min
Typ
2,481,386
27 (0.9)
⎯
Max
Unit
Hours
g (oz.)
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Data Sheet
March 19, 2009
EUE Series DC-DC Power Modules:
42-55/42-58Vdc Input; 12Vdc Output; 200/120W
Feature Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions. See Feature Descriptions for additional information.
Parameter
On/Off Signal interface
(V
I
= V
I
,min to V
I
, max; Open collector or equivalent,
signal referenced to V
IN
(-) terminal)
Negative logic: device code suffix “1”
Logic Low =Module On, Logic High =Module Off
Positive logic: No device code suffix required;
Logic Low =Module Off, Logic High =Module On
Logic Low Specification
Remote On/Off Current –Logic Low
On/Off voltage:
Logic Low
Logic High-(Type=Open collector)
Logic High maximum allowable leakage current
Turn-On Delay and Rise Times
(I
O
= I
O, max ,
V
IN
=V
IN, nom,
T
A
= 25 C)
T
delay
= Time until V
O
= 10% of V
O,set
from either
application of Vin with Remote On/Off set to On or
operation of Remote On/Off from Off to On with Vin
already applied for at least one second.
T
rise
= time for V
O
to rise from 10% of V
O,set
to 90% of
V
O,set
.
Over temperature Protection
(See Thermal Considerations section)
Input Undervoltage Lockout
Turn-on Threshold
Turn-off Threshold
Input Over voltage shutdown
Turn-off Threshold
EUE200
EUE120
V
in,OVLO
V
in,OVLO
59.8
63
62
66
⎯
⎯
Vdc
Vdc
All
V
in,UVLO
⎯
35.5
40
36.5
41.9
⎯
V
V
o
Device
Symbol
Min
Typ
Max
Unit
All
All
All
All
All
I
on/off
V
on/off
V
on/off
I
on/off
T
delay
enable
with Vin
T
delay
enable
with on/off
T
rise
T
ref
―
0.0
―
―
―
―
―
―
1.0
0.8
5
50
mA
V
V
μA
―
3
―
msec
―
3
―
msec
―
⎯
12
130
―
⎯
msec
°C
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Data Sheet
March 19, 2009
EUE Series DC-DC Power Modules:
42-55/42-58Vdc Input; 12Vdc Output; 200/120W
Characteristic Curves
The following figures provide typical characteristics for the EUE200B1 (12.0V, 17A) at 25ºC. The figures are identical
for either positive or negative Remote On/Off logic.
ON/OFF VOLTAGE
O
UTPUT VOLTAGE
6
5
INPUT CURRENT (A)
Io=22A
4
3
2
Io=11A
1
0
35
40
45
50
55
Io=0A
INPUT VOLTAGE, V
IN
(V)
V
On/off
(V) (2V/div)
V
O
(V) (5V/div)
TIME, t (5 ms/div)
Figure 1. Typical Input Characteristic at Room
Temperature.
96
94
Figure 4. Typical Start-Up Using Remote On/Off,
negative logic version shown.
OUTPUT CURRENT OUTPUT VOLTAGE
V
O
(V) (100mV/div)
I
O,
(A) (5A/div)
EFFICIENCY (%)
92
90
88
86
84
82
80
0
5
Vin=42V
Vin=48V
Vin=55V
10
15
20
25
OUTPUT CURRENT, I
o
(A)
TIME, t (500μs/div)
Figure 2. Typical Converter Efficiency Vs. Output
current at Room Temperature.
Figure 5. Typical Transient Response to Step increase
in Output Load from 5A to 10A at Room Temperature
and 48 Vdc Input.
OUTPUT CURRENT OUTPUT VOLTAGE
V
O
(V) (100mV/div)
I
O,
(A) (5A/div)
53 Vin
OUTPUT VOLTAGE
V
O
(V) (50mV/div)
48 Vin
42 Vin
TIME, t (1μs/div)
TIME, t (500μs/div)
Figure 3. Typical Output Ripple and Noise at Room
Temperature and P
o
= 200W.
Figure 6. Typical Transient Response to Step decrease
in Output Load from 10A to 5A at Room Temperature
and 48 Vdc Input.
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